首页/ 题库 / [单选题]GPS测量中各观测站的天线应按天线附有的的答案

GPS测量中各观测站的天线应按天线附有的方位标进行定向,使之根据罗盘指向磁北极。通常定向偏差应保持在()度以内。

单选题
2021-09-02 13:57
A、2
B、3
C、4
D、5
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正确答案
B

试题解析

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